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Development of pollution diagnosis for coastal environment using seaweed biomarker.

Research Project

Project/Area Number 18H03391
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 64010:Environmental load and risk assessment-related
Research InstitutionKobe University

Principal Investigator

OKAMURA HIDEO  神戸大学, 内海域環境教育研究センター, 教授 (90253020)

Co-Investigator(Kenkyū-buntansha) 川井 浩史  神戸大学, 内海域環境教育研究センター, 特命教授 (30161269)
乾 秀之  神戸大学, バイオシグナル総合研究センター, 准教授 (90314509)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2019: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Keywords防汚剤 / 銅 / ジウロン / シブトリン / 増殖阻害 / 無影響濃度 / 誘導発現遺伝子 / RNA-seq / 褐藻 / バイオマーカー / 遺伝子発現変動 / 褐藻類 / 遺伝子変動発現 / RNA-seq解析
Outline of Final Research Achievements

Macroalgal growth inhibition test in an organic-free medium using seaweeds from KU-MACC was developed. Comparing the experimental values of the species sensitivity distribution of antifouling agents (copper, diuron, cybutryne) to 25 seaweed strains with the literature values, seaweeds are generally more sensitive than freshwater phytoplankton and aquatic plants. The gene whose expression was suppressed by copper treatment of Ectocarpus and the gene whose expression was induced by diuron treatment were the same. A PCR using synthesized primers of these 6 genes and Undaria genome suggested that the ortholog genes of Ectocarpus exist in Undaria.

Academic Significance and Societal Importance of the Research Achievements

沿岸域の岩場等に固着して生育する海藻類は、生息海域の汚染を表すバイオモニター生物であり、室内試験によって防汚剤に対する感受性が高いことが明らかとなった。我が国沿岸域に生育するワカメに、防汚剤に反応するバイオマーカー候補遺伝子を見出したことから、沿岸汚染の診断法の開発に近づくことができた。今後、銅およびジウロンを添加した人工海水中でワカメを培養し、選抜したバイオマーカー候補遺伝子の発現変動を定量RT-PCRにより確認すると共に、野外で採取したワカメを用いて遺伝子発現変動を確認し、これが採取海域に含まれる銅並びにジウロン濃度と相関するか確かめ、バイオマーカーとしての性能を評価することが重要である。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (7 results)

All 2021 2020 2019 2018

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Journal Article] Floating particles with high copper concentration in the sea-surface microlayer.2021

    • Author(s)
      Okamura,H., Kano,K., Yap, C.K., and Emmanouil,C.
    • Journal Title

      Environmental Science and Pollution Research

      Volume: - Issue: 20 Pages: 29535-29542

    • DOI

      10.1007/s11356-021-14187-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The macroalgal culture collection in Kobe University (KU-MACC), and a comprehensive molecular phylogeny of macroalgae based on the culture strains.2020

    • Author(s)
      Kawai, H., Hanyuda, T., Akita, S., Uwai, S.
    • Journal Title

      Applied Phycology

      Volume: - Issue: 1 Pages: 159-166

    • DOI

      10.1080/26388081.2020.1745685

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Protect “LIFE BELOW WATER” from ship antifouling agents.2020

    • Author(s)
      Okamura, H.
    • Organizer
      AIST World Conference 2020- International Symposium for Innovative Sustainable Materials & The 7th International Symposium for Green-Innovation Polymers 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Suspended particles with high copper concentration in the sea-surface microlayer.2020

    • Author(s)
      Okamura,H., Kano,K., C. K. Yap,C.K., and Emmanouil,C.
    • Organizer
      Sixth International Symposium on Green Chemistry, Sustainable Development and Circular Economy
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Selection of biomarker genes from the brown alga Ectocarpus siliculosus, treated with antifouling agents2019

    • Author(s)
      Hideyuki Inui, Ryoko Yasuda, Hiroshi Kawai, Vladimir Beskoski, Hideo Okamura
    • Organizer
      The 16th International Symposium on Persistent Toxic Substances, Hoboken, USA, 2019(10), Oral presentation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 海藻類の増殖に及ぼす防汚剤の有害影響2019

    • Author(s)
      岡村秀雄,安田諒子,乾秀之,Vladimir P Beskoski,川井浩史.
    • Organizer
      第25回日本環境毒性学会研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 沿岸域の汚染を評価するための海藻類増殖阻害試験法の開発2018

    • Author(s)
      岡村秀雄、安田諒子、乾 秀之、川井浩史
    • Organizer
      平成30年度瀬戸内海研究フォーラムin兵庫
    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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